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10-Minute UCL Scan Pinpoints Source of Aldosterone Excess in Hypertension

Phase 2 testing is underway after an initial 17-patient study localized overproduction without reported side effects.

Overview

  • The PET-CT uses a novel tracer that selectively binds aldosterone synthase, lighting up overproducing adrenal tissue within minutes.
  • In first clinical use at UCLH, clinicians identified the adrenal source of excess aldosterone in all 17 patients.
  • Findings were reported in a New England Journal of Medicine research letter, with development led by UCL’s Erik Arstad after more than a decade of tracer-chemistry work.
  • The scan could simplify care by guiding adrenalectomy or targeted aldosterone-blocking medicines, potentially reducing reliance on invasive adrenal vein sampling.
  • Researchers aim to gather evidence for regulatory approval and NHS adoption, noting that aldosterone-driven disease is a commonly missed contributor to high blood pressure.